Home / 1,396,381.20-2,094,571.80-918,084.30

Finding the Fourth Proportional to 1,396,381.20, 2,094,571.80 and 918,084.30

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Solution

The fourth proportional to 1,396,381.20, 2,094,571.80 and 918,084.30 is: 1,377,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,381.20 : 2,094,571.80 = 918,084.30 : x
  2. Step 2: Convert to fraction form
    1,396,381.20/2,094,571.80 = 918,084.30/x
  3. Step 3: Cross multiply
    1,396,381.20x = 2,094,571.80 × 918,084.30
  4. Step 4: Simplify right side
    1,396,381.20x = 1,922,993,484,802.74
  5. Step 5: Solve for x
    x = 1,922,993,484,802.74/1,396,381.20
  6. Step 6: Final answer
    x = 1,377,126.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.